* SSH Keys breaking symlink access?
@ 2017-05-19 20:51 Dave.Pierce
2017-05-19 21:37 ` Erik Soderquist
0 siblings, 1 reply; 3+ messages in thread
From: Dave.Pierce @ 2017-05-19 20:51 UTC (permalink / raw)
To: cygwin
Hello!
I am running Cygwin-64, 2.8.0(0.309/5/3) on a Windows 2016 Server. This sys= tem is intended for use by a fairly wide audience of devs. We have this wor= king correctly on an old Windows 2008 box running Cygwin 1.7.9(0.237/5/3). = The new system is intended to replace the old one. I've mimicked the config= uration as much possible on the new system, but am running into an issue wi= th passwordless (key-auth) ssh.
I have created a windows symlink ("mklink /d /sharename [unc_path]") in the=
c:\cygwin64 directory that points to an NFS share. (This is the same as th= e old system.)
I have OpenSSH configured and working.
I can access "/sharename" within explorer (c:\cygwin64\sharename\) and loca= lly from within the Cygwin prompt (/sharename), when logged in as either th= e service account or my own domain account.
If I ssh into the system using password authentication, I am able to "ls /s= harename" regardless of which account I use, in either interactive mode or = not.
If I copy ~/.ssh/ to the server for the service account, I can get into /sh= arename.
But if I copy ~/.ssh/ for my own domain account, I cannot. I get a "permiss= ion denied" error when attempting to cd to /sharename or do an ls of it. Th= is is true whether I ssh into the system interactively, or execute the comm= and remotely / non-interactively.
On the old system, "ls -la /" shows the link owned by the service account u= ser. On the new system, it was initially owned by "Administrators" but I ch= anged it to match. This did not change behavior. I've diffed the other Cygw= in config files and except for a couple minor tweaks due to the newer Cygwi= n version, there are no differences.
/var/log/sshd.log shows nothing.
Any help or troubleshooting tips would be appreciated. I'm not so hot as a = Windows admin - without dmesg or a syslog, I'm kind of at a loss. I don't really understand why ssh key auth would interfere with file system or network access in this way.
Regards,
Dave P.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: SSH Keys breaking symlink access?
2017-05-19 20:51 SSH Keys breaking symlink access? Dave.Pierce
@ 2017-05-19 21:37 ` Erik Soderquist
2017-05-19 21:50 ` Erik Soderquist
0 siblings, 1 reply; 3+ messages in thread
From: Erik Soderquist @ 2017-05-19 21:37 UTC (permalink / raw)
To: cygwin
On Fri, May 19, 2017 at 3:26 PM, Dave Pierce wrote:
> Hello!
>
> I am running Cygwin-64, 2.8.0(0.309/5/3) on a Windows 2016 Server. This
> system is intended for use by a fairly wide audience of devs. We have this
> working correctly on an old Windows 2008 box running Cygwin
> 1.7.9(0.237/5/3).
> The new system is intended to replace the old one. I've mimicked the
> configuration as much possible on the new system, but am running
> into an issue with passwordless (key-auth) ssh.
Did you set up the daemon and use "passwd -R"?
> I have created a windows symlink ("mklink /d /sharename [unc_path]") in
> the c:\cygwin64 directory that points to an NFS share. (This is the same
> as the old system.)
>
> I have OpenSSH configured and working.
>
> I can access "/sharename" within explorer (c:\cygwin64\sharename\)
> and locally from within the Cygwin prompt (/sharename), when
> logged in as either the service account or my own domain account.
>
> If I ssh into the system using password authentication, I am able to
> "ls /sharename" regardless of which account I use, in either
> interactive mode or not.
>
> If I copy ~/.ssh/ to the server for the service account, I can get into
> /sharename.
>
> But if I copy ~/.ssh/ for my own domain account, I cannot. I get a
> "permission denied" error when attempting to cd to /sharename or
> do an ls of it. Th= is is true whether I ssh into the system
> interactively, or execute the command remotely / non-interactively.
This is expected behavior if you have not used "password -R" to
provide the network password.
-- Erik
--
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